What product to apply to an AMARYLLIS garden bed to prevent weed seeds from germinating ?

My amaryllis garden is now dormant and mulched in, to protect the bulbs from freezing in the North Georgia zone.





Due to adjacent fields of weeds, (not under my control), each summer, many weeds sprout, even though I cover the bare soil.





Is there a product which can be applied in the spring when the bulbs are just beginning to become active, which will stop weed germination, and not harm the growth of the bulbs ?





Thank you for your help.

What product to apply to an AMARYLLIS garden bed to prevent weed seeds from germinating ?
Go to a large garden center, get a "preemergent herbicide", different brands but all work well. Must be applied BEFORE the weeds start to germinate.
Reply:Be very careful of pre emergence herbicides as they form a skin over the ground and will kill anything that grows up thru the herbicide skin, ie weed or plants